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Commands and Functions for Numbers

The following are commands and functions for numbers:

INTEGERS
Abs absolute value of a number
Bin binomial coefficient
BinExp, EvalBinExp binomial expansion
Div, Mod quotient and remainder for integers
EvalHilbertFn evaluate the Hilbert function
Fact factorial function
Fraction returns the quotient of its arguments
GCD, LCM greatest common divisor, least common multiple
GenericPoints random projective points
ILogBase integer part of the logarithm
Inverse multiplicative inverse
Iroot integer part of r-th root of an integer
IsEven, IsOdd test whether an integer is even or odd
IsNumber checks if the argument is a number
IsPrime prime integer test
Isqrt computes the (truncated) square root of an integer
IsZero test whether an object is zero
Len the length of an object
Max, Min a maximum or minimum element of a sequence or list
Mod2Rat reconstructing rationals from modular integers
NextPrime find the next largest prime number
Num, Den numerator, denominator
Partitions partitions of an integer
Product, Sum the product or sum of the elements of a list
Rand random integer
Seed seed for Rand
Size the amount of memory used by an object


RATIONALS
Abs absolute value of a number
CFApprox, CFApproximants, ContFrac continued fractions
DecimalStr convert rational number to decimal string
FloatApprox approx. of rational number of the form M*10^E
FloatStr, MantissaAndExponent convert rational number to a float string
Fraction returns the quotient of its arguments
ILogBase integer part of the logarithm
Inverse multiplicative inverse
IsNumber checks if the argument is a number
IsZero test whether an object is zero
Max, Min a maximum or minimum element of a sequence or list
Num, Den numerator, denominator
Product, Sum the product or sum of the elements of a list


MODULAR INTEGERS
Fraction returns the quotient of its arguments
Inverse multiplicative inverse
IsNumber checks if the argument is a number
IsZero test whether an object is zero
Mod2Rat reconstructing rationals from modular integers
Product, Sum the product or sum of the elements of a list


For details look up each item by name. Online, try ?ItemName or H.Syntax("ItemName").